The motor does not turn except sound
Is the connection ok? The sound of the urn is the coils of the coils. What's the electric motor.：If it's a single phase of the motor that might be a fault of the current or the initiating device, the third phase is the power supply,.
Hello! This is due to the serious wear and tear of the shaft sleeve or bearing, the rotor's long and high momentum, the rotor sweep!!! The rotor is trapped by the stator's magnetic force and cannot form a rotating magnetic field! If you charge for a long time, you will burn the stator coil. So instead of electricity, the electromagnetic force can turn, but the electricity can't move!
Should must be three-phase motor, single-phase motor does not exist no electricity turn and turn electricity, that is the three-phase motor, lack of phase, of course not turned, and the noise increased, the time long will burn out motor, either the power lack of phase, or is a phase winding machine is broken, can use a multimeter ohm measuring three-phase resistor is balance, if there are two phase resistance infinity one phase winding motor burn out, by the same token, disconnect the power cord, power measuring between three phase is the phase voltage is 380 v
The motor shaft and shaft sleeve clearance is too large, or motor rotor momentum is too big, a magnetic field when electric motor internal rotor and the stator attraction bruised (commonly known as "chamber"), unable to turn. At this point the electric current will soar, if not handled in time, the machine will burn down.
Motor bearing clearance of the rotor and stator attraction which are caused by too much can't start. No electricity, can turn. After electrify rotor deflection side cannot turn instead.
